September-October 2007

Gulf Coast Comeback

Post-Katrina, Mississippi identifies the development of water and wastewater systems as critical to achieving the state’s housing and economic development goals.

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By Penelope B. Grenoble

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What NOAA researchers identified as the Gulf Region extends from the Florida Keys to the southern tip of Texas and includes the coastline of six states. The Gulf is the country’s fourth most populated coastal area, with 19.1 million residents who account for 13% of the nation’s coastal total. In Mississippi, however, the on-the-ground picture is much less dense than the 164 persons per square mile NOAA has attributed to the region as a whole. Prior to Katrina, the population in Mississippi’s six Gulf counties totaled only 465,000 residents. Given a high birth rate and the influence of interstate migration, however, the region had been gradually developing, and projections had been for Florida-style growth.

Katrina forced many coastal residents inland into areas that were not equipped to handle this instantaneous population influx. Austin-based Angelou Economics, a subcontractor in coastal redevelopment planning, estimates that among the six coastal counties, Hancock County, next door to Louisiana, lost 16% of its population to Katrina, and Jackson County at the opposite end of the state, 3%. Conversely, Pearl River County, immediately north of Hancock County, and George County, north of Jackson, both largely rural, experienced a 14% increase in their populations post-Katrina. Historically, the three lower coastal counties have been more urbanized. Jackson County is the most highly industrialized of the three, with a petroleum refinery and chemical, port, and shipping facilities. Immediately west, the economy in Harrison County, home to the population centers of Gulfport and Biloxi, is primarily gaming and tourism, as it is in neighboring Hancock County.

Local projections have the Gulf Region growing by approximately 2.7% annually, considerably faster than the national average of 1.7% annual growth. Typically 10,000 homes are built every year in Mississippi, but as a result of Katrina, Harrison County alone will need some 5,000 housing units a year for the next five years. [New housing construction along Mississippi’s coast is complicated by the Federal Emergency Management Agency’s (FEMA’s) remapping of special flood hazard areas. The new flood insurance rate maps will ultimately affect decisions on where and how to rebuild, and in the interim FEMA has issued Advisory Base Flood Elevations (ABFEs) for communities to guide new construction.]

Additional opportunities associated with coastal redevelopment include correcting inadequacies in Mississippi’s pre-Katrina water and wastewater infrastructure and addressing environmental issues related to wastewater and stormwater management. Three major drainage basins drain the Gulf Region: the Coastal Streams Basin, which encompasses the Wolf and Biloxi rivers; the Pascagoula River Basin, which includes the Escatawpa and Pascagoula rivers and Red and Black creeks; and the Pearl River Basin. To facilitate planning by way of matching projects with the region’s natural typography and hydrology, these regional basins were separated into 27 watersheds, a planning approach favored by NOAA’s researchers.

Although FEMA addressed itself to challenges associated with immediate disaster relief, state leaders realized that if the coast were to come back, long-term planning and investment would be critical. The state’s Congressional delegation secured approximately $5.1 billion in long-term recovery assistance from a total of $11.5 billion allocated through the US Department of Housing and Urban Development (HUD) for Mississippi, Alabama, Florida, Texas, and Louisiana. Based on recommendations from his recovery and redevelopment commission, Governor Haley Barbour mandated that a portion of the HUD money be used to fund water, wastewater, and stormwater infrastructure improvements that would accommodate future growth as well as contemporary needs. And to ensure the HUD money would be invested equitably and systematically, the governor also called for a comprehensive plan to identify and prioritize the region’s most critical infrastructure requirements.

Visual: provided by NOAA
Devastation spread along Mississippi’s coastal counties after Hurricane Katrina.

The resulting Mississippi Gulf Region Water and Wastewater Plan was undertaken through a private and public sector partnership between the Mississippi Engineering Group Inc. (whose membership included Jackson-based Waggoner Engineering Inc., Camp Dresser & McKee in Gulfport, and Engineering Associates in Jackson, along with individual county-based firms) and the Mississippi Department of Environmental Quality (MDEQ), which acted as the lead agency for the state.

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According to Steve Spengler, the MDEQ’s project lead, a significant amount of post-hurricane growth has occurred in unincorporated areas of the state where wells and onsite systems are being used to handle water and wastewater demand, in part because initially there was no centralized authority to coordinate infrastructure development. “Systems have been installed where the soils aren’t conducive or the water table is too high,” says Spengler, “so in addition to providing for future growth, the post-Katrina effort is going to provide the opportunity to connect people who don’t now have access to centralized systems.”

Prior to Katrina, utility districts existed in the three more densely populated lower counties where a number of publicly operated wastewater treatment plants had been established. As part of the recovery effort, the Mississippi legislature created utility authorities in all six counties and added responsibility for water supply and stormwater to existing authorities that had originally been formed primarily to handle wastewater. The legislation gives the county authorities broad powers to regulate infrastructure design, construction, operation, maintenance, and performance standards within their service areas as well as the authority to set rates and charges for services, issue revenue bonds, and borrow money for the provision of services and facilities. The legislation also created a Gulf Region Utility Board to provide management support and encourage long-term economic development and infrastructure planning. Next Page >

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